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Question

File upload fails with downscoped token

  • May 22, 2025
  • 0 replies
  • 29 views

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Our application integrates with box using the web UI Elements with downscoped tokens for specific folders.

We have an issue with the Content Uploader when a user tries to upload a large file, 3-5 GB, the upload process fails silently in the background.

The failed response contains the following header:

WWW-Authenticate: Bearer realm="Service", error="invalid_token", error_description="The access token provided is invalid."

Looks like the downscoped token expires while the Content Explorer is still uploading the chunks of the file.

Is there a way to issue downscoped tokens with longer expiry or to "refresh" the token used by the Content Explorer when an error occurs while uploading?